Gas-lamp.



R. W.1ZIBRLBV1N.

GAS LAMP. APPLICATION FILED FEB. 5, 1908.

900,817. Patented oen-13,1908.

' INVENTOR.

ATTORNEY.

UNITED sTATEs PATENT oEErcE.

RICHARD W. ZIERLEIN, OF S'I. LOUIS, MISSOURI, ASSIGNOR TO PARIS LAMP MANUFACTURIN COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

GAS-LAMP. v

Specification of Letters Patent.

Patented Oct. 18, 1908.

To aZZ'whom it may concern:

Be it known that I, RICHARD W'. ZIERLEIN, citizen oi the UnitedStates, residing at St. Louis, State of Missouri, have invented certain new and usel'ul Improvements in Gas- Lamps, ot which the iollowing'is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof. v

My invention has relation to improvements in gas-lamps (or va por-burning lamps) particularly those identified in the trade as gas arc-lamps, and it consists in the novel dctails of construction more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure l is an elevation of a gas arc-lamp having my invention applied thereto; Fig. 2 is an enlarged vertical section of the bottom draft-shield and support therefor, and the strainer disk, taken on the line 2 2 of Fig. 3 5 Fig. v3 is a horizontal section on the line 3 3 of Fig. 2 5 Fig. 4 isa vertical sectional detail of the gas regulating valve Fig. 5 isa detached elevational view of the upper end of the pilotburner; Fig. 6 is a perspective of the key by which the gas regulatmg valve is manipulated; and Fig. 7 is a perspective detail showing one of the pockets or depressions on the flangeof the draftshield, and the bracket arm engaging the same.

The object of my invention is to equip a gas-lamp of the character referred to with a bottom draft-shield and a cooperating strainer, which together with the globe supported by theshield, and with the upper hood will effectively protect the incandescent mantles of the lamp.

A further object is to provide a pilot burner which will supply a flame to. each mantle-burner, the tips of the pilot-burner being renewable at any time.

A further object is to locate the gas regulating valve at a point where it can be readily manipulated from the iioor where the lamp is suspended any considerable distance above the floor.

A further object is to provide a supporting spider for the draft-shield which at the same time will serve as a means for guiding the shield into position as the same, and the globe resting upon it are being placed `into proper position on the lamp.

Theinvention consists in other features whose advantages will be better apparent from a detailed description of the invention Vwhich is as iollows:

Referring to the drawings, 1 represents the top or hood of the lamp, 2, the shade, and 3 the globe as usual. The lower end of the gassupply pipe 4 is coupled to the upper chambered section a of a hollow casting com )rising in addition thev hollow burner-arms lb, b, and a depending tubular boss c, the portion a, communicating with the passages of the larms b, b, through a port 5 which is controlled by the conical seat of a screw-valve 6 mounted in the boss c and terminating at the llower end in a square or polygonal head 7.

A suitable packing ring d andl gland e are secured to the boss c to term a gas-tight joint. The valve may be turned to proper position at any time, when the lamp is hung above i the iloor, by the stick or key S provided with gas through the burner-tips 10, 10, carried by the ends of the arms t, t. The manner of supporting the'tubes 9, 9, is not material as my invention is not concerned with said detail. One conventional manner is illustrated in the drawings, and requires no detailed description.

Passed over the gas-pi e 4, and secured thereto in any mechanica manner directly above the chambered section a of the bottom Vvalve-casting, is the central hub of a spider composed in the present instance of such central hub and a series (preferably three) of arms 11, terminating at their free ends in depending beveled fingers l2.` These iingers serve to guide into position the upper globesupporting flange 13 of the draft-shield 14 as the latter with its globe are raised into position on the sup orting arms of the spider. The edge ofthe ange 13 has cuttherefrom a series of notches n through which the arms 11 are free to pass, after which by giving the shield a turn of sixty degrees, the ends of' the arms will automatically enter thedepressions or pockets p formed in the shield-flange at points intermediate the three notches a referred to. The form of the shield 14 is on the order of an inverted cone, and by the time the shield is raised into position on the spider arms, the bottom and smaller opening of the shield is only slightly removed from the strainer or perforated filter disk or plate 15, the latter being first passed over the screw valve 6 before the valve is screwed into the boss c of the valve-casting and while the filter or strainer eliminates all dust and solid particles from the air fed to the burners, it at the saine time permits the ltered air to pass freely through it.

It may be stated that by the time the shield with its globe is properly adjusted and supported on the spider arms 11, the upper end of the globe comes up against the basal flange of the hood, and since the hood is itself surmounted by the u per draft shield l', it follows that all the de icate parts such as the mantles are protected from injury and from draft, alldirt is kept from the burners, and hence there results a lamp of the highest possible efficiency, the quantity of gas being easily regulated by a careful adjustment of the valve 6 in the manner indicated.

IfIaving described my invention what I claim is l. In combination with the supply-pipe of a gas-lamp, a buiner at the lower end of the pipe, a terminal valve for regulating the flow of the gas to the burner, a filter or strainer disposed below the valve-easing, a draftsh-ield open at both ends passed about the burner, means for supportinga the draftshield, the filter being adapted to substantially close the bottom opening of the shield when the latter is in position onthe lamp, and means on the shield for supporting a suitable globe, substantially as set forth.

2. In combination with the supply-pipe of a gas-lamp, burners disposed at the lower end of the pipe and deriving their supply therefrom, a spider having radiating arms disposed about the bases of the burners, a draftshield adapted to be passed. around the burners and having cut-away portions or notches to permit the free passage therethrough of the ends of the arms aforesaid,

pockets disposed between the notches for locking the shield, the shield being adapted to be supported by the arms when turned sufficiently to bring the notches out of alinement with said arms, substantially as set forth.

3. In combination with the supj'ily-pipe of a gas-lamp, a series of burners at the lower end of the pipe, a terminal rotatable valve for regulating the llow of the gas to the burners, a filter or strainer disposed about the axis of the valve, a draft-shield open at both ends passed about the burners, means for support-ing the draft-shield, the lilter being adapted to substantially close the bottom opening of the shield when the latter is in position on the lamp, and ,means on the shield for supporting a suitable globe, substantially as set forth.

l. In combination with the supply-pipe ol' a gas-lamp, a hollow burner casting at the lower end of the pipe, incandescent mantle burners leading from the casting, a gas-regulating screw-valve mounted in line with the axis of the supply pipe and having a section projecting beyond the casting, a perforated screen or lilter-disk disposed about the valve7 a spider having a series of radiating arms secured to the pipe above the casting, the arms terminating in depending beveled guide-lingers, a draft-shield having an upper notched globe-supporting flange adapted to be passed above the spider arms and by proper rotation be supported on the arms, said [lange being provided with. a series of pochetsl'or the reception of the arms whereby the shield becomes locked against accidental displacement, the filter serving to substantially close the lower open end of the shield when the latter rests on the spider7 and a hood with which the globe mounted on the shield eooperates to practically incluse the burners and mantles from outside interference, substantially as set forth.

In testimony whereof I allix my signature, in presence of two witnesses.

tICHARD W. ZI ER liE'lN Witnesses:

EMIL STAREK, Tiioiims LiNDnMANN.

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